Electric‑Drill‑Mounted Alloy Tube Expander Bit for Copper & Aluminum Tubing, HVAC Refrigeration Pipe‑Repair Tool






- Stock: In Stock
- Model: MZ007768
- SKU: MZ007768
Available Options
Product Features
This electric‑drill‑mounted tube expander bit is constructed from high‑strength alloy material, specially made for expanding copper and aluminum tubing in HVAC and refrigeration maintenance work. Two optional dimension‑types are available for different pipe‑size requirements. Hex‑shank interface can be directly clamped by standard electric drill chuck for fast tube expanding operation, greatly improving working‑efficiency comparing with manual tube‑expanding tools. Compact‑size structure, easy‑to‑carry for on‑site repair jobs. Important Reminder: Only tube expander bit is included. Electric drill and other demo‑shown accessories are NOT contained in package. Control drill‑speed reasonably during operation to avoid over‑heating‑caused tube‑annealing.
Product Specifications
| Product Type | Electric‑Drill‑Mounted Tube Expander Bit |
| Material | High‑strength alloy |
| Color | Silver |
| Available Type Options | Type A: 6.35‑9‑12.7mm Type B: 6‑9.5‑12mm |
| Overall Dimension | Approx.10.5×1.4×0.5cm |
| Compatible Pipe | Copper / Aluminum tubing 6‑12mm diameter range |
| Application Scenario | HVAC, air‑conditioner, refrigeration pipe‑repair & maintenance |
| SKU | MZ007768 |
| Package Contents | 1 × Tube Expander Bit (drill & other accessories excluded) |
Usage Reminder
Securely lock expander‑bit inside drill‑chuck before operation. Insert bit into pipe‑opening, run drill at medium‑stable‑speed; avoid excessive high‑speed which may lead to copper‑tube annealing. Keep the tube and expander‑bit concentric during expanding‑process. Applying proper lubricant on bit‑head will get better expanding‑result. If chuck slips, you can properly open small triangular notch on shank for anti‑slipping purpose.
Frequently Asked Questions
Q: Does package include electric drill?
A: No. Only tube expander bit is supplied; electric drill and other accessories shown in pictures are not included.
Q: What are differences between Type‑A and Type‑B?
A: Type‑A covers 6.35‑9‑12.7mm pipe‑size; Type‑B fits 6‑9.5‑12mm pipe‑size, please select according to actual‑pipe‑diameter.
Q: Why copper‑tube becomes soft after expanding?
A: Excessive rotating‑speed will produce high‑temperature and cause tube‑annealing. Operate under medium‑speed and control working‑time.
Q: What kind of pipes can this bit work on?
A: Mainly used for 6‑12mm‑range copper‑tube and aluminum‑tube for air‑conditioner & refrigeration maintenance.
Package Contents
1 × Tube Expander Bit
(Note: Electric drill and other demo‑accessories are NOT included)




















